Welcome to USADA’s dietary supplement safety education and awareness resource – Supplement 411. We thank you and congratulate you for taking the initiative to educate yourself regarding this important topic. As you may already know, the answers are not straightforward. No resource can protect you completely. The reality is that the use of dietary supplements can be risky, and that awareness, caution, education, and common sense must be exercised when considering their use. The resources on this page will help you gain a better understanding of the dietary supplement issue and cover topics including: